protected override bool OnHoverOverAdorner(IAdorner adorner)
{
if (this.action == null && !this.IsAltDown)
{
this.PopSelf();
return(true);
}
PathPartAdorner pathPartAdorner = adorner as PathPartAdorner;
if (pathPartAdorner == null)
{
return(base.OnHoverOverAdorner(adorner));
}
PenAction penAction = this.GetAction(pathPartAdorner);
if (penAction == null)
{
if (this.action != null)
{
penAction = this.action;
}
else
{
this.PopSelf();
return(true);
}
}
this.Cursor = penAction.HoverCursor;
return(true);
}
protected override bool OnButtonDownOverAdorner(IAdorner adorner)
{
if (this.action != null)
{
this.action.End();
this.action = (PenAction)null;
}
if (!this.ToolBehaviorContext.SnappingEngine.IsStarted)
{
this.ToolBehaviorContext.SnappingEngine.Start(this.ToolBehaviorContext, (BaseFrameworkElement)null, (IList <BaseFrameworkElement>)null);
}
PathPartAdorner pathPartAdorner = adorner as PathPartAdorner;
if (pathPartAdorner == null)
{
return(base.OnButtonDownOverAdorner(adorner));
}
this.action = this.GetAction(pathPartAdorner);
if (this.action != null)
{
this.action.Begin(new PathEditContext(pathPartAdorner.FigureIndex, pathPartAdorner.PartIndex), this.MouseDevice);
if (!this.affectedAdornerSets.Contains(pathPartAdorner.PathAdornerSet))
{
this.affectedAdornerSets.Add(pathPartAdorner.PathAdornerSet);
}
this.isConstrainingAxes = this.IsShiftDown;
this.UpdateCursor();
}
return(true);
}
protected override bool OnButtonDownOverAdorner(IAdorner adorner)
{
this.EndAction();
if (!this.ToolBehaviorContext.SnappingEngine.IsStarted)
{
this.ToolBehaviorContext.SnappingEngine.Start(this.ToolBehaviorContext, (BaseFrameworkElement)null, (IList <BaseFrameworkElement>)null);
}
PathPartAdorner pathPartAdorner = adorner as PathPartAdorner;
if (pathPartAdorner == null)
{
return(base.OnButtonDownOverAdorner(adorner));
}
PenAction action = this.GetAction(pathPartAdorner);
SceneElement sceneElement = (SceneElement)this.EditingElement;
this.pathEditorTarget = pathPartAdorner.PathAdornerSet.PathEditorTarget;
if (this.pathEditorTarget != null)
{
this.EditingElement = (BaseFrameworkElement)this.pathEditorTarget.EditingElement;
}
if (sceneElement != null)
{
this.ActiveSceneViewModel.DefaultView.AdornerLayer.InvalidateAdornerVisuals(sceneElement);
}
this.BeginAction(action, pathPartAdorner);
return(true);
}
private PenAction GetAction(PathPartAdorner pathPartAdorner)
{
PenAction penAction = (PenAction)null;
PathEditorTarget pathEditorTarget = pathPartAdorner.PathAdornerSet.PathEditorTarget;
PathFigure pathFigure = pathEditorTarget.PathGeometry.Figures[pathPartAdorner.FigureIndex];
for (int index1 = 0; index1 < pathFigure.Segments.Count; ++index1)
{
System.Windows.Media.PathSegment segment = pathFigure.Segments[index1];
for (int index2 = 0; index2 < PathSegmentUtilities.GetPointCount(segment); ++index2)
{
if (PathSegmentUtilities.GetPointKind(segment, index2) == PathPointKind.Arc)
{
return((PenAction)null);
}
}
}
if (pathPartAdorner is PathPointAdorner)
{
penAction = (PenAction) new ConvertPointAction(pathEditorTarget, this.ActiveSceneViewModel);
}
else if (pathPartAdorner is PathTangentAdorner || pathPartAdorner is PenTangentAdorner)
{
penAction = (PenAction) new TangentDragAction(pathEditorTarget, this.ActiveSceneViewModel, pathPartAdorner is PenTangentAdorner);
}
else if (pathPartAdorner is PathSegmentAdorner)
{
penAction = (PenAction) new ConvertSegmentAction(pathEditorTarget, this.ActiveSceneViewModel);
}
return(penAction);
}
private void BeginAction(PenAction action, PathPartAdorner pathPartAdorner)
{
if (action == null)
{
return;
}
if (this.IsActive && action is StartAction)
{
this.FinalizePath(this.EditingElement);
}
PathEditContext pathEditContext = this.pathEditContext;
if (pathPartAdorner != null)
{
pathEditContext = new PathEditContext(pathPartAdorner.FigureIndex, pathPartAdorner.PartIndex);
}
this.action = action;
this.Cursor = action.DragCursor;
this.isConstrainingAxes = this.IsShiftDown;
action.Begin(pathEditContext, this.MouseDevice);
this.pathEditorTarget = action.PathEditorTarget;
this.pathEditContext = action.PathEditContext;
if (this.pathEditorTarget != null)
{
this.EditingElement = (BaseFrameworkElement)this.pathEditorTarget.EditingElement;
}
if (!action.SetPathActive || this.pathEditorTarget == null || this.pathEditContext == null || this.EditingElement != null && !this.EditingElement.IsViewObjectValid)
{
return;
}
((PenTool)this.Tool).ActivePathEditInformation = new ActivePathEditInformation(this.pathEditorTarget, this.pathEditContext.FigureIndex);
}
protected override bool OnButtonDownOverNonAdorner(Point pointerPosition)
{
if (this.action != null)
{
this.action.End();
this.action = (PenAction)null;
}
this.UpdateCursor();
return(true);
}
private PenAction GetAction(PathPartAdorner adorner)
{
PenAction penAction = (PenAction)null;
PathSegmentAdorner pathSegmentAdorner = adorner as PathSegmentAdorner;
PathEditorTarget pathEditorTarget = (PathEditorTarget)null;
if (adorner != null)
{
pathEditorTarget = adorner.PathAdornerSet.PathEditorTarget;
}
if (pathSegmentAdorner != null)
{
penAction = (PenAction) new InsertAction(pathEditorTarget, this.ActiveSceneViewModel);
}
else
{
PathPointAdorner pathPointAdorner = adorner as PathPointAdorner;
if (pathPointAdorner != null)
{
penAction = (PenAction) new DeletePointAction(pathEditorTarget, this.ActiveSceneViewModel);
PathFigure figure1 = pathEditorTarget.PathGeometry.Figures[pathPointAdorner.FigureIndex];
if (PathFigureUtilities.IsOpen(figure1) && !PathFigureUtilities.IsIsolatedPoint(figure1))
{
bool flag1 = pathPointAdorner.PointIndex == 0;
bool flag2 = pathPointAdorner.PointIndex == PathFigureUtilities.PointCount(figure1) - 1;
bool flag3 = pathPointAdorner.PathAdornerSet.PathEditorTarget == this.pathEditorTarget;
bool flag4 = this.pathEditContext != null && pathPointAdorner.FigureIndex == this.pathEditContext.FigureIndex;
bool flag5 = this.pathEditorTarget != null && pathPointAdorner.PathAdornerSet.PathEditorTarget.PathEditMode == this.pathEditorTarget.PathEditMode;
bool flag6 = pathPointAdorner.PathAdornerSet.PathEditorTarget.PathEditMode == PathEditMode.ScenePath;
PathFigure figure2 = this.pathEditContext == null || this.pathEditorTarget == null ? (PathFigure)null : this.pathEditContext.GetPathFigure(this.pathEditorTarget.PathGeometry);
bool flag7 = figure2 != null && PathFigureUtilities.IsOpen(figure2);
bool flag8 = (flag3 && !flag4 || flag5 && flag6) && flag7;
if (flag1)
{
penAction = !flag3 || !flag4 ? (!flag8 ? (PenAction) new ExtendAction(pathEditorTarget, this.ActiveSceneViewModel) : (PenAction) new JoinAction(pathEditorTarget, this.ActiveSceneViewModel, this.pathEditorTarget, this.pathEditContext)) : (PenAction) new CloseAction(pathEditorTarget, this.ActiveSceneViewModel);
}
else if (flag2)
{
penAction = !flag3 || !flag4 ? (!flag8 ? (PenAction) new ExtendAction(pathEditorTarget, this.ActiveSceneViewModel) : (PenAction) new JoinAction(pathEditorTarget, this.ActiveSceneViewModel, this.pathEditorTarget, this.pathEditContext)) : (PenAction) new AdjustAction(pathEditorTarget, this.ActiveSceneViewModel);
}
}
if (PathFigureUtilities.IsIsolatedPoint(figure1) && this.pathEditContext == null)
{
penAction = (PenAction) new ExtendAction(pathEditorTarget, this.ActiveSceneViewModel);
}
}
}
if (penAction == null)
{
penAction = !this.IsActive || this.pathEditorTarget == null || (this.pathEditorTarget.PathGeometry.Figures.Count <= 0 || this.pathEditorTarget.PathGeometry.Figures[this.pathEditorTarget.PathGeometry.Figures.Count - 1].IsClosed) ? (PenAction) new StartAction(this, (PathEditorTarget)null, this.ActiveSceneViewModel) : (PenAction) new AppendAction(this.pathEditorTarget, this.ActiveSceneViewModel);
}
return(penAction);
}
private bool AllDone()
{
this.ToolBehaviorContext.SnappingEngine.Stop();
if (this.action != null)
{
this.action.End();
}
this.action = (PenAction)null;
if (this.IsAltDown)
{
this.UpdateCursor();
}
else
{
this.PopSelf();
}
return(true);
}
private void EndAction()
{
if (this.action == null)
{
return;
}
this.action.End();
this.pathEditorTarget = this.action.PathEditorTarget;
this.pathEditContext = this.action.PathEditContext;
if (this.pathEditorTarget != null)
{
this.EditingElement = (BaseFrameworkElement)this.pathEditorTarget.EditingElement;
}
if (this.action.SetPathActive && this.pathEditorTarget != null && this.pathEditContext != null && (this.EditingElement == null || this.EditingElement.IsViewObjectValid))
{
((PenTool)this.Tool).ActivePathEditInformation = new ActivePathEditInformation(this.pathEditorTarget, this.pathEditContext.FigureIndex);
}
this.action = (PenAction)null;
}
